using System;
using System.Security.Policy;

namespace Crawler
{
	/// <summary>
	/// understands the storage of urls
	/// </summary>
	public interface IUrlStack {
		void Add(Url Key, bool parserBusy);
		Url GetNext();
		bool IsPresent(Url Key);
		int Count{get;}
		bool HasNext();
		void TriggerNotifications();
	}
}
